@@ -110,5 +110,6 @@ fi

 # Quantum dhcp agent runs dnsmasq

 if is_service_enabled q-dhcp; then

-    sudo kill -9 $(ps aux | awk '/[d]nsmasq.+interface=tap/ { print $2 }')

+    pid=$(ps aux | awk '/[d]nsmasq.+interface=tap/ { print $2 }')

+    [ ! -z $pid ] && sudo kill -9 $pid

 fi